Novel conjugates of podophyllotoxin and coumarin: Synthesis, cytotoxicities, cell cycle arrest, binding CT DNA and inhibition of Topo IIβ
作者:Shu-Yi Hao、Shi-Liang Feng、Xing-Rong Wang、Zhichao Wang、Shi-Wu Chen、Ling Hui
DOI:10.1016/j.bmcl.2019.06.063
日期:2019.8
A series of conjugates of podophyllotoxin and coumarin were prepared using the click reaction, and their cytotoxicities against A549, HepG2, HeLa, and LoVo cells were evaluated. Among them, compound 14e exhibited the strongest cytotoxicities against these cancer cells with IC50 values of 4.9–17.5 μM. Furthermore, 14e disrupted microtubules and induced cell cycle arrest at G1 phase by regulating P21
使用点击反应制备了一系列鬼臼毒素和香豆素的结合物,并评估了它们对A549,HepG2,HeLa和LoVo细胞的细胞毒性。其中,化合物14e对这些癌细胞表现出最强的细胞毒性,IC 50值为4.9-17.5μM。此外,14e通过调节LoVo细胞中的P21和Cyclin D1破坏了微管并诱导了G1期的细胞周期停滞。另外,14e结合CT DNA并选择性地抑制TopoIIβ优于TopoIIα。分子对接模型表明14e似乎与几个DNA碱基和残基Gln778形成稳定的氢键。综上所述,这些缀合物具有被开发为抗肿瘤药的潜力。